I've never used CC3. So maybe someone who does use it can help with that aspect. But... What doesn't look right to me: Your light source is coming from multiple directions. That's one of your issues. Another is the perspective. Your land looks very bird's eye view right now, the way your crater walls are situated, and the towns are isometric... plus, the town symbols aren't sitting on a flat surface as they were designed to do. For that last one, you could try making them smaller so they fit on the green areas at the base of the wall, or you could make the green areas larger to fit the towns.